Health insurance is one of the most consequential financial decisions most people make on autopilot. Open enrollment arrives, the default looks familiar, and most people click through without running the numbers. In 2026, with meaningful differences in premium, deductible, and out-of-pocket structures, picking the wrong plan can cost thousands — and picking the right one can unlock real tax advantages.
What changed in 2026
- ACA marketplace premiums adjusted across many regions — some markets saw premium increases, others stabilized, making annual re-comparison essential rather than optional.
- HDHP thresholds updated. The IRS adjusts HDHP minimum deductibles and HSA contribution limits annually. For 2026, confirm the current figures before selecting a plan.
- Telehealth coverage expanded as a standard feature across most plan types, reducing one traditional advantage of PPO networks for routine care.
- Pharmacy benefit structures changed significantly — the cap on out-of-pocket drug costs under Medicare provisions is phasing in, and commercial plans are responding with their own adjustments.
Plan type comparison
| Plan type |
How it works |
Best for |
| HMO |
Must use network; requires referrals for specialists |
Low-cost, coordinated care, predictable utilization |
| PPO |
In- and out-of-network options; no referral needed |
Flexibility, existing specialist relationships |
| EPO |
Network-only (like HMO) but no referral required |
Balance of cost and flexibility, if network fits |
| HDHP |
High deductible, lower premium; HSA eligible |
Healthy adults, those who can fund an HSA |
| POS |
Hybrid HMO/PPO; in-network primary, out-of-network allowed |
Moderate flexibility with cost control |
The true cost comparison
The premium is the most visible cost but rarely the whole story.
| Cost element |
What it means |
| Premium |
Monthly payment regardless of use |
| Deductible |
What you pay before insurance pays anything (except preventive) |
| Copay |
Fixed cost per visit after deductible (varies by plan structure) |
| Coinsurance |
Your percentage of costs after deductible, until out-of-pocket max |
| Out-of-pocket maximum |
The most you pay in a year — everything above this is covered 100% |
Run this math: For a given year, estimate your likely medical utilization (prescriptions, appointments, any known procedures). Run those numbers through each plan's cost structure and compare total annual cost including premiums.
How to pick
- Calculate your expected utilization. A healthy person with no ongoing prescriptions and rare doctor visits often does better in an HDHP. Someone with chronic conditions or planned procedures may do better in a low-deductible plan.
- Check the provider network. Confirm your primary care doctor, specialists, and preferred hospitals are in-network. A plan's quoted costs assume in-network use.
- Evaluate HDHP + HSA seriously. If the plan qualifies, an HSA lets you invest pre-tax dollars for medical expenses with no expiration. Over years, this is a powerful financial tool.
- Know the out-of-pocket maximum. This is your financial backstop for a bad year. A plan with a $8k max vs $6k max is a meaningful difference if you hit it.
- Compare prescription drug formularies. If you take regular medications, look up their tier on each plan's formulary before deciding.
Common mistakes
Picking the lowest premium without running utilization. A $200/month premium savings is irrelevant if the deductible is $3k higher and you hit it.
Ignoring the network. Out-of-network care on an HMO or EPO can be 100% your responsibility, including surprise bills for facility charges.
Not funding the HSA with an HDHP. An unfunded HDHP gives you the downside (high deductible) without the upside (triple-tax-advantaged savings). Commit to funding the HSA to capture the benefit.
Not re-comparing every year. Plans change. Your life changes. An enrollment that made sense two years ago may not today.
What to skip
- Plans with networks that exclude your current providers — changing doctors to save $50/month on premium is usually not worth it.
- Very high-deductible plans without an HSA vehicle — the deductible risk without the tax-advantaged savings account is a worse deal than either a funded HDHP/HSA or a low-deductible plan.
- Supplemental insurance products sold at enrollment — critical illness and hospital indemnity plans can duplicate coverage you already have; evaluate carefully before adding.
FAQ
What is an HSA and can I open one with any plan?
A health savings account (HSA) is only available with HSA-eligible HDHPs. Not all HDHPs qualify — confirm the plan is HSA-eligible before relying on that feature. Contributions are pre-tax, grow tax-free, and withdrawals for qualified expenses are tax-free.
How do I know if my doctor is in-network?
Use the insurer's online provider search before enrollment, not the doctor's office billing staff — they sometimes confirm incorrectly. Verify by calling the insurer directly with the provider's NPI number.
What happens if I miss open enrollment?
You generally cannot change your plan until the next open enrollment unless you have a qualifying life event (job change, marriage, birth, move, loss of other coverage).
Is employer health insurance always the best option?
Usually for the coverage itself — employer contributions reduce your effective cost significantly. But for some individuals, particularly healthy young adults, marketplace plans may be competitive. Run the comparison if your employer's contribution is modest.
Where to go next
See How to shop for health insurance in 2026, How to use an HSA in 2026, and HSA vs FSA in 2026.